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设计题目：C6140普通车床主轴箱传动设计

摘要

目前机床主轴变速箱的设计还是以经验或类比为基础的传统（经验）设计方法。

本文探索科学理论的应用，科学地分析的处理经验，数据和资料，确定设计方案：

1. 参数拟定

根据机床类型，规格和其他特点，了解典型工艺的切削用量，结合实际条件和情况，并与同类机床对比分析后确定：极限转速Z ），主传动电机功率N。

2. 传动设计

根据拟定的参数，通过结构网和转速图的分析，确定转动结构方案和转动系统图，计算各转动副的传动比及齿轮的齿数，并验算主轴的转速误差。

3. 动力计算和结构草图设计

估算齿输模数m和直径d，选择和计算反向离合器，制动器。将各传动件及其它零件在展开图和剖面图上做初步的安排，布置和设计。

4. V带的设计

在结构草图的基础上，进行V带和带轮的设计和计算。 5. 主轴变速箱装配设计

主轴变速箱装配图是以结构草图为“底稿”，进行设计和会制的。图上各零件要表达清楚，并标注尺寸和配合。

这样既能提高机床设计和制造水平，也将促进设计方法的现代化。

nmax和nmin，公比?（或级数

关键词： 齿轮； 结构设计； 箱体

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Abstract

The machine tool spindle gear box design or to experience or analogy based on traditional design method ( experience ).

This paper explores the application of scientific theory, scientific analysis of the processing experience, data and information, the determination of design scheme:

According to the machine type, size and other characteristics, understanding the typical process of cutting parameters, with the world's terms and conditions, and with a similar machine after the comparative analysis to determine: speed and, common ratio ( or series Z ), the main drive motor power N.

The 2transmission design

According to the parameter drafted, through the structure of network and speed chart analysis, determine the rotational structure scheme and the rotation system diagram, calculation of the rotation pairs of

transmission ratio and gear teeth, and checking the spindle speed error.

3dynamic calculation and structure sketch design

Estimation of gear modulus m and D diameter, selection and calculation of reverse clutch, brake.

The transmission parts and other parts in the expansion plans and sections do preliminary arrangement, layout and design.

4shaft and bearing calculation

In the structure of the draft on the basis, a transmission shaft stiffness and the shafting bearing life checking.

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5spindle gear box assembly design

Main gearbox assembly drawing is the structure sketch for\design and system. Map all parts to express clearly, and dimensioning and coordination.This can enhance the machine tool design and manufacturing level, also will promote the modernization design method.

Key words: gear box; structure design;

目录

1.车床参数的拟定 ................................................................................................................ 3

1.1概述 ............................................................................................................................. 3 1.2参数的拟定 ................................................................................................................ 3

2.传动设计 ............................................................................................................................. 5

2.1传动结构式、结构网的选择确定............................................................................ 5 2.2 转速图的拟定 ........................................................................................................ 7 2.3齿轮齿数的确定及传动系统图的绘制 ..................................................................... 9

3.动力计算和结构草图设计 ........................................................................................ 13

3.1计算转速 ..................................................................................................................... 13 3.2传动轴的估算和验算 ............................................................................................... 13 3.3齿轮模数的估算和计算 ........................................................................................... 18 3.4轴承的选择和校核 .................................................................................................... 23 3.5摩擦离合器的选择与校核 ....................................................................................... 26

4.V带的设计 .......................................................................................................................... 29

4.1V带的传动计算 .......................................................................................................... 29 4.2传动轴的估算 ............................................................................................................ 31 4.3齿轮模数的确定和模数的计算 .............................................................................. 33 4.4带轮结构设计 ............................................................................................................ 38 4.5片式摩擦离合器的选择和计算 .............................................................................. 38

5.主轴变速箱装配设计 ................................................................................................... 41

5.1主轴刚度验算 ............................................................................................................ 41

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5.2齿轮校验 ..................................................................................................................... 43 5.3轴承的校验 ................................................................................................................. 44 5.4轴轮块的设计 ............................................................................................................ 45 5.5传动轴的设计 ............................................................................................................ 46 5.6主轴组件的设计 ........................................................................................................ 47

结束语 ........................................................................................................................................ 52

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致谢 .............................................................................................................................................. 53 参考文献 ................................................................................................................................... 54

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